This patch add rate shaping as well as cell support. The link-rate can be
specified via rate options. Three optional arguments control the cell
knobs: packet-overhead, cell-size, cell-overhead. To ratelimit eth0 root
queue to 5kbit/s, with a 20 byte packet overhead, 100 byte cell size and
a 5 byte per cell overhead:
tc qdisc add dev eth0 root netem rate 5kbit 20 100 5
Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
get_distribution() returns an int.
cppcheck reported:
[tc/q_netem.c:243]: (style) Checking if unsigned variable 'dist_size' is less than zero.
The mismatch actually rendered the error checking
after get_distribution() ineffective.
Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
[IPROUTE]: Add sprint_ticks() function and use in CBQ
Add helper function to print ticks to avoid assumptions about clock
resolution in CBQ.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
[IPROUTE]: Replace "usec" by "time" in function names
Rename functions containing "usec" since they don't necessarily return
usec units anymore.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
When using tc to change netem attributes, only those values
on the command line should be passed down, others should
remain unchanged.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>